%I #4 Aug 05 2018 15:58:29
%S 0,4,2,14,14,38,74,149,269,662,1294,2721,5911,12084,25175,53473,
%T 111383,233690,490578,1030868,2158490,4533365,9504248,19950172,
%U 41823355,87810137,184117052,386450223,810444428,1700925286,3567310635,7486285033
%N Number of nX5 0..1 arrays with every element unequal to 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Column 5 of A317741.
%H R. H. Hardin, <a href="/A317738/b317738.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 2*a(n-2) +5*a(n-3) +5*a(n-4) -6*a(n-5) -a(n-6) -15*a(n-7) +16*a(n-8) -23*a(n-9) +4*a(n-10) -82*a(n-11) -46*a(n-12) -44*a(n-13) +101*a(n-14) +160*a(n-15) +83*a(n-16) +21*a(n-17) -52*a(n-18) +83*a(n-19) +154*a(n-20) +284*a(n-21) +155*a(n-22) -76*a(n-23) -161*a(n-24) -125*a(n-25) -49*a(n-26) -3*a(n-27) +40*a(n-28) +11*a(n-29) -5*a(n-30) -2*a(n-31) -2*a(n-32) +a(n-33) for n>39
%e Some solutions for n=5
%e ..0..1..0..0..1. .0..1..0..1..0. .0..1..0..1..0. .0..1..0..0..0
%e ..1..1..1..0..0. .1..0..0..1..0. .1..0..0..1..1. .1..1..1..1..1
%e ..0..1..1..0..1. .0..0..1..1..0. .1..0..0..1..0. .0..1..1..0..0
%e ..0..1..0..0..1. .1..1..1..1..1. .1..0..1..1..0. .0..1..0..0..1
%e ..0..1..0..1..0. .0..0..0..1..0. .1..0..1..0..1. .1..0..1..1..0
%Y Cf. A317741.
%K nonn
%O 1,2
%A _R. H. Hardin_, Aug 05 2018